Fenntucky Mike

Notes are more easily damaged by handling. There are other factors that I have not quantified like the number of coin collectors vs note collectors, the amount of NCLT coins and mint sets graded vs presentation notes, total number of each  and the percent that graded 70, etc. but my gut feeling is that notes graded 70 far less than coins. In the end I feel it comes down to that notes are more fragile. 

Do you have any North Africa SCs or just the Hawaii?

My Hawaii note (I think it's my only one, have to check) is grade 67 and very low SN so that drove up the price. Hawaii notes aren't quite as numerous asSC's but in low-60's or lower grades with any SN they are pretty common so maybe only worth $10-$30 so not worth it to grade/holder as you said.

Why is that, Mike ?  I would think with all the bills printed -- billions each year -- you'd get some70's there.
Agree on the need to avoid the inflection-point price.  I saw an MS-69 1995-W ASE, the key date for that coin, did NOT get any bids at $3,750 on GC the other night.

They source it. There is probably only a hand-full of African nations that print their own currency

70's are fairly rare when it comes to notes, much tougher for a note to graded 70 than a coin imo, and the prices for 70's are usually outrageous. I like to try and pick up notes graded 68 and stay away from 69 & 70 as the price is not worth it.
Here is my only 70 graded note, a test note from 2008.

They source it. There is probably only a hand-full of African nations that print their own currency

To me it depends on if you can recoup the grading fees and be money ahead when it comes time to sell, I don't use an arbitrary minimum dollar amount as a determining factor. Of course some people just want to have a note graded so it can be added to a registry set, regardless. 
The grading fee alone for this note would be $37, add shipping there and back, handling fee, insurance, etc., and your looking at a sizable sum. Tough to recoup that money on a note like this.

Got any highly-graded bills ? 
Could be a recent bill with no special attributes that is a 69 or even 70 (not sure I have seen many 70's !!)....or a somewhat older bill from the last 100 years that is in the high-60's....or maybe pre-1900 where "high" could be in the 50's or 40's.
Here's a Silver Certificate that graded 68 from the 1957 Series.

Welcome to the Forum. 
I believe these to be fairly common notes and sequential #s don't really bring much, if any, premium so most of the decision will have to be based on what they will grade and where the break even point is between sell price at a certain grade and the cost of grading plus raw value. Having the four notes graded will probably run you around $30+ a piece, which means from what I'm seeing, with some quick searching, is that those notes probably need to grade at 65 or higher and I don't think they would. These seem to sell on ebay, with sequential numbers/in that condition, for about $5 a piece. I'd sell them "as is" unless you're confident in your grading skills.
A very cool find and some very nice notes, good luck.

Those notes are pretty roached, not much value there above face. 

That is perfect my friend, Thank You!
Well that is not at all what I thought it would be, I can understand combining the two Pick #s but to not transfer the linked stars watermark to Pick # 35 as variety "c" is very strange to me. I had originally thought that Pick 40 may have been the zig zag lines of varnish variety and they just combined it with P35 as variety "b" but nope, they pretty much deleted it and didn't feel a different watermark deserved a variety for some reason. I can make a very strong argument that there are five varieties of this note and I will in an upcoming Journal entry.
Thanks again.

For under $30 you did good.

Thanks for the new pic of the front.
Based on the new pics I think 64 is a longshot and from what I've seen that's the number you'd needed to hit to cover the grading fees. If it were to grade 64 EPQ it would be around a $200 note, if it's me I would just buy the note graded and not take the chance or just leave it and stick it in a nice top load holder and enjoy it as is.

Added to my collection
 

Don't disagree, Youtube up in-person clubs down, I really don't see a way of reversing that though. Maybe all these coin clubs should have there own Youtube cannel and/or live stream for every meeting. I also think that there are more middle to elder aged people watching Youtube than you suspect. Lot's of people looking to get rich quick from numismatics, as opposed to collecting. 
Sometimes that's all it takes, just to be exposed to collecting, and then they return in 20-40 years.  Most kids I know are not generally interested in the learning aspect of numismatics, at first, they want to see something shiny, pretty, worth a bazillion dollars, or ancient (not the collectors). Setting the numismatic hook with learning as your bait is a though sell to a YN.

I believe he pawned it or sold it to a coin shop. I thought he said in another post that whomever he sold the note to was going to get it graded but I don't think the results were ever posted.

This is my only one I have.

VF20

Chopmarks on notes.
https://www.coinbooks.org/esylum_v17n07a21.html

Here's another LGS, I think this ran me just over $200.  I had to go down to the 58 Grade (given the higher $50 denomination) or matching the 65 grade above would have cost me $750 or more:

I don't think they really stood for anything, just a change in the ink used. You can probably date the notes by the seal color. 
Awesome not GF. You picked out some notes with really good eye appeal. 

Condition is king, they are not worth getting graded. 
Birthday notes are a niche collecting area, they bring very little premium if any in my experience. The serial number 06241965 is probably the best one since there are people still living that were born on that date, unless the other dates coincide with other famous births or events in history.